RE: [xacml] Schema 15f

From
Tim Moses <>
Date
2002-07-10T21:04:30+00:00
ID
Thread
RE: [xacml] Schema 15f
Title: Schema 15f

Daniel 
- My understanding is that your issue is addressed by the "type 
promotion" rules that Michiharu has identified.

 

In 
case anyone thinks I have inadvertently revealed a deceit by referring to the 
contents of Michiharu's document, which I previously said I was unable to 
decode, I was actually able to decode the plain-text part of the document, which 
discussed type-promotion, but not the table, which (I assume) contained the 
legal type-combinations for the functions.

 

All 
the best.  Tim.

-----------------------------------------
Tim Moses
Tel: 
613.270.3183

 

    
-----Original Message-----
From: Daniel Engovatov 
    [mailto:]
Sent: Wednesday, July 10, 2002 
    4:40 PM
To: 'Tim Moses'; 'XACML'
Subject: RE: [xacml] 
    Schema 15f

    
I 
    apologize for repeating myself, but how do you plan to map 
    "numeric"?  Float's and exact integers do have very different 
    meaning for many, many purposes

    
(you do not open an account N. 3.0000000001 != 3 - IEEE floats do not 
    guarantee last digit IIRC)  My suggestion was - allow an implicit 
    conversion of integer to float, but

    
not the other way around (using FLOOR, and ROUND 
    instead...)

    
        
-----Original Message-----
From: Tim Moses 
        [mailto:]
Sent: Wednesday, July 10, 2002 
        1:33 PM
To: 'XACML'
Subject: [xacml] Schema 
        15f

        
Colleagues - Attached, please find version 15f of the 
        policy schema, incorporating the decisions we made on Monday last, and 
        the table of function names and legal argument types.  Some notes 
        ...

        
1. The documents are not 
        "free-standing".  Further explanation is required if one 
        is to fully understand them.  Of course, the intention is to 
        provide that explanation in the specification, which is not available 
        yet.  In the meantime, some "real-time" discussion is 
        necessary.  We can do this on Monday.  Alternatively, we could 
        hold an ad-hoc schema sub-committee meeting on (say) Friday, provided 
        people are ready to discuss by then.

        
2. There has recently been some discussion of the schema 
        on the list.  I have attempted to address some of the issues 
        raised.  But, I suggest that we hammer out an agenda ahead of our 
        next meeting in order to go over all the issues raised.  I'll 
        review the mail-list and produce an initial schema-issues 
        list.

        
3. I was unable to decode Michiharu's operator-mapping 
        list.  The attached is my own attempt.  Perhaps, Michiharu 
        will verify my version.  I have retained the "duration" 
        functions, because I personally feel that they have some value, provided 
        we carefully define them.

        
All the best.  Tim. 

        
----------------------------------------- 
        
Tim Moses 
Tel: 
        613.270.3183